After illegally staying in the United States, I want to go to Canada after returning to China for several years.

it's basically difficult for you to get a visa.

even if you get a visa, if you are found later, you will be kicked back because your visa is false.

Generally, new immigrants should apply for a Zhang Gong card after obtaining a green card.

This is a very important card.

This card package contains all your work records and information.

As long as the employer inputs your work card number, you can check all your work records.

In addition, the work card is called social security number because some benefits, including the collection of welfare funds, are closely related to the work card.

but the work card number is not equal to the social security number.

because as long as you have legal residency, you have a social security number.

In this question, you live illegally, so you can't have a social security number.